In my iTunes I have stored for all my media. The iTunes is available on Macbook Pro with OS X Lion. The iTunes media is stored external USB HDD formatted as FAT 32. I have split some video files which were larger than 4GB. After split, I converted them to mp4 so that I can play them both in iTunes and from the system HDD. But is there any possible way to keep the files separately and link them together to play as full movie on iTunes/apple tv.